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16 lines
500 B
16 lines
500 B
AC_DEFUN([AX_C___ATTRIBUTE__], [ |
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AC_MSG_CHECKING(for __attribute__) |
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AC_CACHE_VAL(ac_cv___attribute__, [ |
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AC_TRY_COMPILE( |
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[#include <stdlib.h> |
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static void foo(void) __attribute__ ((unused)); |
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void foo(void) { exit(1); }], |
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[], |
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ac_cv___attribute__=yes, |
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ac_cv___attribute__=no |
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)]) |
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if test "$ac_cv___attribute__" = "yes"; then |
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AC_DEFINE(HAVE___ATTRIBUTE__, 1, [define if your compiler has __attribute__]) |
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fi |
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AC_MSG_RESULT($ac_cv___attribute__) |
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])
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